WI0700473_Monitoring (Report)_20231002

DocuSign Envelope ID: OFA29946-CDAA-4438-BB94-651664F72830
ROY COOPER
Governor
ELIZABETH S. BISER
Srrretary
RICHARD E. ROGERS. JR.
Director
Michael Colson and Gail Dickinson
120 Dogwood Drive
Camden, North Carolina 27921
NORTH CAROLINA
Environmental Quality
October 2, 2023
SUBJECT: Groundwater Sampling Results
UIC Permit No. W10700473
Issued to Michael Colson and Gail Dickinson
Camden, Camden County, North Carolina
Dear Mr. Colson and Ms. Dickinson:
Staff from the Washington Regional Office of the Water Quality Regional Operations
Section collected samples of the influent (supply well) and effluent (injection well) from your
geothermal heat pump system on August 28, 2023. The samples were analyzed for metals,
nutrients, and other inorganic constituents by the Division of Water Resources laboratory. A
summary table of the analytical results, as well as the laboratory reports, field sampling forms, and
definitions of laboratory data qualifiers are attached to this letter. The following constituents were
detected above state groundwater standards in both samples from your system:
Parameter
Units
NC
Results
Groundwater
Standard
Total Coliform
Colony Forming Units
1
30 (supply well -influent)
per 100 milliliters
160 (injection well -effluent)
(CFU/100ml)
Fecal Coliform
Colony Forming Units
1
3 (supply well -influent)
per 100 milliliters
2 (injection well -effluent)
(CFU/100ml)
Iron
Micrograms per Liter
300
370 (supply well -influent)
(ug/L)
<50 (injection well -effluent)
Manganese
Micrograms per Liter
50
100 (supply well -influent)
(ug/L)
94 (injection well -effluent)
pH
Standard Units (s.u.)
6.5 to 8.5
5.5 (supply well -influent)
5.5 (injection well -effluent)
These exceedances should not affect the use of the wells for your geothermal heat pump
system; however, it is recommended before using the water from these wells for personal
consumption that you consult with Albemarle Regional Health Services (local health agency).
Nonh Carolina Depanmenl of Environmental Quality Division of Water Resources
Washington Regional Office - 943 Washington Square Mal - Washington, Noah Carolina, 27889
�/ 252-9.46-6l8l

DocuSign Envelope ID: OFA29946-CDAA-4438-BB94-651664F72830
Michael Colson and Gail Dickinson
October 2, 2023
Page 2 of 2
If you have any questions regarding the sampling results or your permit, please feel free to
contact me at [phone].
Sincerely,
D'Al R"'(Y 5-44
Dwight Randy Sipe, P.G., Hydrogeologist
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Attachments
cc: Blake Butcher —DWR Groundwater Resources Section (electronic copy)
Laserfiche
North Caroline Department o f En,,.o,rcrt.l Quality Division of Walet Resources
�}} Washngton Regional Office - 943 Washington Square Man - Washington, North Caroline. 27899
252 946-6481

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AD13588
North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc. Descr.:
County:
Region:
River Basin
Emergency
COC Yes/No
W10700473
Camden
Collector
RSIPE
T
VisitlD
Washington
Report To
WARD
Location In: WARD NLC
Collect Date'
08/28/2023
Priority COMPLIANCE
Collect Time
10_16
Sample Matrix. GROUNDWATER
Sample Depth
Loc. Type: Other: Geotherm Supply
Sample ID:
AD13588
PO Number#
Date Received.
08/29/2023
Time Received'.
07:00
Labworks LoginlD
TASCENZ01
Delivery Method
No Courier
Final Report Dale:
9130/23
Report Print Date:
09/30/2023
If this report is labeled preliminary report, the results have not been validated.
Result/
CAS # Analvte Name PQL Qualifier
LAB
Sample temperature at receipt by lab 2.0
Do not use for Regulatory purposes.
Method Analysis
Units Reference Date
°c 8/29/23
validated by
MSWIFT
Coliform, MF Fecal in liquid
1
MIC
301
CFU/100m1
SM 9222 D-1997
8/29/23
JJURGEVICH
Coliform, MF Total in liquid
1
30 Q1
Cl
SM 9222 B-1997
8/29/23
JJURGEVICH
14797-65-0
Nitrite as N in liquid
0.02
NUT
0.02 U
mg/L as N
EPA 353.2 REV 2
8/29/23
ALWILLIAMS
E701177
NO2+NO3 as N in liquid
0,30
4.4 P
ml as N
EPA 353.2 REV 2
9f7/23
ALWILLIAMS
24959-67-9
Bromide
0A
WET
0.4U
mg/L
EPA 3000 rev21
9/6/23
ALWILLIAMS
16887-00-6
Chloride
2.0
60P
mg/L
EPA 3000 rev2.1
9/6/23
ALWILLIAMS
16984-48-8
Fluoride
0.4
0.4U
mg/L
EPA 300.0 rev2.1
9/6/23
ALWILLIAMS
14808-79-8
Sulfate
2.0
18
mg/L
EPA 300.0 rev21
916/23
ALWILLIAMS
Total Dissolved Solids in liquid
12.5
226
mg/L
SM 2540 C-1997
8/29123
ALWILLIAMS
7429-90-5
Al by ICP
50
MET
50 U
ug/L
EPA 200.7 Rev44
9/5123
JJURGEVICH
7440-38-2
AS by ICPMS
2.0
2.0U
ug/L
EPA 200.8 Rev5.4
9/14123
JJURGEVICH
7440-70-2
Ca by ICP
0,10
14
mg/L
EPA 2007 Rev44
9/5/23
JJURGEVICH
7440-47-3
Cr by ICPMS
5.0
5.0 U
ug/L
EPA 200.8 Rev5.4
9/14/23
JJURGEVICH
7440-50-8
Cu by ICPMS
2.0
23
ug/L
EPA 200.8 Rev5.4
9/14/23
JJURGEVICH
7439-89-6
Fe by ICP
50
370
ug/L
EPA 200.7 Rev4.4
9/5/23
JJURGEVICH
7440-09-7
K by ICP
0.10
2.4
ml
EPA 200.7 Rev4.4
9/5/23
JJURGEVICH
7439-95-4
Mg by ICP
0,10
6.4
mg/L
EPA 200.7 Rev44
9/5123
JJURGEVICH
7439-96-5
Mn by ICP
10
100
ug/L
EPA 200.7 Rev4.4
9/5/23
JJURGEVICH
7440-23-5
Na by ICP
0.2
37P
mg/L
EPA 2007 Rev44
9/5/23
JJURGEVICH
7440-02-0.
Ni by ICPMS
2.0
6.9
ug/L
EPA 200.8 Rev5.4
9/14/23
JJURGEVICH
7439-92-1
Pb by ICPMS
2.0
5.2
ug/L
EPA 200.8 Rev54
9/14123
JJURGEVICH
7440-66-6
Zn by ICPMS
10
46
ug/L
EPA 200.8 Rev5.4
9/18123
JJURGEVICH
WSS Chemistry Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699.1623 [phone]
"Not Detected" or"U" does not indicate the sample is analyle free but that the analyte is not detected at or above the PQL
Page 1 of 3

NCIDWX La6oratory Section 9RS=Its/Sample Comments/Qualifier(Definitions
Sample IDAD13688
Result/ Method Analysis
Qualifier Units Reference Date Validated by
Sample Comments
MIC'. Fecal Coliform-ol-Sample exceeded holding time prior to receipt at lab.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average, whereat least one result is qualified with a "U". The PQL is used for the qualified result(S) to cal,
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.
B3 Coliform-Countable membranes with more than 60 or 80 colonies. The value reported is calculated using the count from the smalle:
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present, too numerous to count (TNTC). TNTC is generally defined as >150 colonies.
86 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this c<
BB1 MPN-No wells or tubes gave a positive reaction. Value based upon the appropriate MPN Index and reported as a less than "<" valu
BB2 MPN-All wells or tubes gave positive reactions. Value based upon the MPN Index and reported as a greater than 5" value.
C Total residual chlorine was present in sample upon receipt in the laboratory. value is estimated.
G1 BOD-The dissolved oxygen (DO) depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea',
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BCD -Evidence of toxicity. This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/ glutamic acid standard exceeded the range of 198 ± 30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set. The reported value is an estimated greater than value and is calculated fo
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set. The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
it Surrogate recovery limits have been exceeded.
J10 Unidentified peak, estimated value.
WSS Chemistry Laboratory>> 1623 Mail service Center, Raleigh, INC 27699-1623 [phone]
"Not Detected" or 'U" does not indicate the sample is analyte free but that the analyte is not detected at or above the PDL.
Page 2 of 3

NCVI,P f, LaboratorySection 9�Ssufta/Sample Core men ts/Quafifur (Definitions
Sample ID: AD13588
-1. Result/ Method Analysis
Ieuennei Units MUi Ui UIIG6 Uate VdiludLuu uv
J11 The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols (e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or >6'C) during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate.
R This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method. Th
J8 Temperature limits exceeded (samples frozen or>6°C) during storage, the data may not be accurate.
A The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
M Sample and duplicate results are but of control'. The sample is non -homogenous (e.g., VOA soil). The reported value is the lower,
N1 Presumptive evidence and estimated value. The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met (i.e., presence of
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL' due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method -required matrix spike (MS) and/or matrix spike duplicate (MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*. The number value repo
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one -point estimation at It
V Indicates the analyte was detected in both the sample and the associated method blank. Note: The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed -field error.
X3 Sampled, but analysis lost or not performed -lab error.
Y Elevated PQL` due to insufficient sample size.
Zi Inability to analyze the sample.
Z2 Questions concerning data reliability.
J13 Standards used for this analyte are from an uncertified source. These are the only standards currently available for the analyte.
WSS Chemistry Labomtory» 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or"U" does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 3

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AD13589 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc. Descr.:
W10700473
County.
Camden
Collector_
RSIPE
r,[�'
VisillD C lL
(1•�E 1t
Region'.
Washington
Report To
WARO
Location 10.
WARO NLC
River Basin
Collect Date:
08/28/2023
Priority
COMPLIANCE
Emergency
Collect Time'.
10_06
Sample Matrix'.
GROUNDWATER
COC Yes/No
Sample Depth
Loc. Type
Other: Geotherrn Supply
Final Report
Sample ID.
AD13589
PO Number #
Date Received
08129/2023
Time Received:
07_00
Labworks LoginlD
TASCENZ01
Delivery Method
NC Courier
Final Report Date.
9/30/23
Report Print Dale.
09/30/2023
If this report is labeled preliminary report, the results have not been validated.
Result/Method
CAS # Analyte Name PQL Qualifier
LAB
Sample temperature at receipt by lab 2.0
Do not use for Regulatory purposes.
Analysis
Units
Reference Date
°C 8129/23
Validated by
MSWIFT
COlifofm, MF Fecal in liquid
1
MIC
2 Q1
CFU/100m1
SM 9222 D-1997
8/29/23
JJURGEVICH
Coliform, MF Total in liquid
1
160 Q1
CFU/100ml
SM 9222 B-1997
8/29/23
JJURGEVICH
14797-65-0
Nitrite as N in liquid
0,02
NUT
0.02 U
mg/L as N
EPA 353.2 REV 2
8/29/23
ALWILLIAMS
E701177
NO2+NO3 as N in liquid
0.30
4.8 P
ri as N
EPA 353.2 REV 2
917/23
ALWILLIAMS
24959-67-9
Bromide
0A
WET
0.4 U
mg/L
EPA 300.0 rev2.1
9/6123
ALWILLIAMS
16887-00-6
Chloride
2.0
5o P
mg/L
EPA 300.0 rev2.1
9/6/23
ALWILLIAMS
16984-48-8
Fluoride
0.4
0.4U
mg/L
EPA 300.0 rev2.1
916/23
ALWILLIAMS
14808-79-8
Sulfate
2.0
18
mg/L
EPA 300.0 rev2.1
9/6/23
ALWILLIAMS
Total Dissolved Solids in liquid
12.5
219
mg/L
SM 2540 C-1997
8/29/23
ALWILLIAMS
7429-90-5
Al by ICP
50
MET
5o U
ug/L
EPA 200.7 Rev4.4
9/5/23
JJURGEVICH
7440-38-2
As by ICPMS
2.0
2.0 U
ug/L
EPA 200.8 Rev54
9/14/23
JJURGEVICH
7440-70-2
Ca by ICP
0A0
14
mg/L
EPA 200.7 Rev4.4
9/5/23
JJURGEVICH
7440-47-3
Cr by ICPMS
5.0
5.0 J
ug/L
EPA 200.8 Rev5.4
9/14/23
JJURGEVICH
7440-50-8
Cu by ICPMS
2.0
62
ug/L
EPA 200.8 Rev5.4
9/14/23
JJURGEVICH
7439-89-6
Fe by ICP
50
50 U
ug/L
EPA 200.7 Rev4A
9/5/23
JJURGEVICH
7440-09-7
Kby ICP
0.10
2.4
ml
EPA 2007 Rev44
915/23
JJURGEVICH
7439-95-4
Mg by ICP
0.10
6.3
mg/L
EPA 200.7 Rev4A
9/5123
JJURGEVICH
7439-96-5
Mn by ICP
10
94
ug/L
EPA 200.7 Rev4.4
9/5/23
JJURGEVICH
7440-23-5
Na by ICP
0.4
38 P
mg/L
EPA 200.7 Rev4.4
915/23
JJURGEVICH
7440-02-0
Ni by ICPMS
2.0
11
ug/L
EPA 200.8 Rev5A
9/14123
JJURGEVICH
7439-92-1
Pb by ICPMS
2.0
2.0 U
ug/L
EPA 200.8 Rev5.4
9/14/23
JJURGEVICH
7440-66-6
Zn by ICPMS
40
140 P
ug/L
EPA 200.8 Rev5A
9/14/23
JJURGEVICH
WSS Chemistry Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or"U" does not indicate the sample is analyte free but that the analyle is not cletected at or above the PQL
Page 1 of 3

ArCcDWX LaboratorySection 4mtts/Sample Comments/QualiftercDefinit ions
Sample ID. AD13689
Result/ Method Analysis
Qualifier Units
Sample Comments
Coliform-Ql-Sample exceeded holding time prior to receipt at lab.
Reference
Date validated by
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average, where at least one result is qualified with a 'U The PQL is used for the qualified result(S) to cal
61 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero.
B3 Coliform-Countable membranes with more than 60 or 80 colonies. The value reported is calculated using the count from the smalle
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present; too numerous to count (TNTC). TNTC is generally defined as >150 colonies.
B6 Col iform-Esti mated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction. Value based upon the appropriate MPN Index and reported as a less than "<" valu
B132 MPWAII wells or tubes gave positive reactions- Value based upon the MPN Index and reported as a greater than '>" value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO) depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity. This is generally characterized by a significant increase in the BOD value as the sample concentration d[
G5 BOD-The glucose/ glutamic acid standard exceeded the range of 198 ± 30.5 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set. The reported value is an estimated greater than value and is calculated fo
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set. The reported value is an estimated less than value and is calculated fol
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
it Surrogate recovery limits have been exceeded.
J10 Unidentified peak; estimated value.
WSS Chemistry Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or" ll' does not indicate the sample is analyte free but that the analyle is not detected at or above the PQL.
Page 2 of 3

NC OWK La6oratory Section 9�esults/Sampfe Commen ts/Qualifier47efinitions
Sample ID. AD13589
pnl Result/
Method Analysis
uuallner units mererence gate Y
J11 The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols (e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or>6°C) during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method. Th
J8 Temperature limits exceeded (samples frozen or >6°C) during storage, the data may not be accurate.
Jg The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
M Sample and duplicate results are "out of control'. The sample is non -homogenous (e.g., VOA soil). The reported value is the lower,
N1 Presumptive evidence and estimated value. The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met (i.e., presence of s
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo'
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL' due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
S Not enough sample provided to prepare and/or analyze a method -required matrix spike (MS) and/or matrix spike duplicate (MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit*. The number value repo
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one -point estimation at tt
V Indicates the analyte was detected in both the sample and the associated method blank. Note: The value in the blank shall not be s
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed -field error.
X3 Sampled, but analysis lost or not performed -lab error.
Y Elevated PQL` due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
J13 Standards used for this analyte are from an uncertified source. These are the only standards currently available for the analyte.
WSS Chemistry Laboratory» 1623 Mail Service Canter, Raleigh, NC 27699-1623 [phone]
"Not Detected" or"U" does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 3